![g++ - C++ (.cpp, .hpp) undefined symbols for architecture file x86_64 when working with headers in Visual Studio Code on a mac - Stack Overflow g++ - C++ (.cpp, .hpp) undefined symbols for architecture file x86_64 when working with headers in Visual Studio Code on a mac - Stack Overflow](https://i.stack.imgur.com/iEJLA.png)
g++ - C++ (.cpp, .hpp) undefined symbols for architecture file x86_64 when working with headers in Visual Studio Code on a mac - Stack Overflow
![c++ - fatal error: opencv2/core.hpp: No such file or directory Ubuntu and Visual Studio Code - Stack Overflow c++ - fatal error: opencv2/core.hpp: No such file or directory Ubuntu and Visual Studio Code - Stack Overflow](https://i.stack.imgur.com/yETGS.png)
c++ - fatal error: opencv2/core.hpp: No such file or directory Ubuntu and Visual Studio Code - Stack Overflow
I created a folder and a .hpp file,but it seems to be ignored to compile,and the "include <>" occurred error.
![compile error] some hpp files can't open when i compilating pcl by myself · Issue #5343 · PointCloudLibrary/pcl · GitHub compile error] some hpp files can't open when i compilating pcl by myself · Issue #5343 · PointCloudLibrary/pcl · GitHub](https://user-images.githubusercontent.com/68807654/180436720-1106cc16-0754-4514-a7ae-36817d5722d9.png)